<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Map</title>
</head>
<body>
<script>
  //map
  let map = new Map();
  map.set("id",1);
  map.set("name","张三");
  map.set("sex","男");
  console.log(map);
  //GET
  console.log(map.get("name"));
  //更多方法
</script>
</body>
</html>